What’s the difference between a Hydrogen Bomb and a regular Atomic Bomb?

North Korea claimed that a nuclear blast on Sunday was a big advance from its previous five tests because it had successfully detonated a hydrogen bomb. But some experts suspect the North may have tested a “boosted” atomic bomb.

How are a hydrogen bomb and a regular atomic bomb different? And why would that matter to the United States and its allies? Here’s what the experts say.

The first atomic weapons, like those dropped by the United States on the Japanese cities of Hiroshima and Nagasaki in World War II, did that with fission — splitting unstable uranium or plutonium atoms so that their subatomic neutrons fly free, smash up more atoms and create a devastating blast.

How is a hydrogen bomb different?

A hydrogen bomb, also called a thermonuclear bomb or an H-bomb, uses a second stage of reactions to magnify the force of an atomic explosion.

That stage is fusion — mashing hydrogen atoms together in the same process that fuels the sun. When these relatively light atoms join together, they unleash neutrons in a wave of destructive energy.

A hydrogen weapon uses an initial nuclear fission explosion to create a tremendous pulse that compresses and fuses small amounts of deuterium and tritium, kinds of hydrogen, near the heart of the bomb.

The swarms of neutrons set free can ramp up the explosive chain reaction of a uranium layer wrapped around it, creating a blast far more devastating than uranium fission alone.

The United States tested a hydrogen bomb at Bikini Atoll in 1954 that was over 1,000 times more powerful than the atomic bomb dropped on Hiroshima in 1945. Britain, China, France and Russia have also created hydrogen bombs.

What would a successful hydrogen test mean?

Can North Korea Actually Hit the United States With a Nuclear Weapon?

Six systems that North Korea needs to master to achieve a long-sought goal: being able to reliably hit the United States.

–

A successful test this time would show that the North’s nuclear program has become more sophisticated and that the country is closer to making an atomic warhead that could be fitted on a long-range missile able to strike the mainland United States.

The underground blast, which caused tremors felt in South Korea and China, was the first by the North to surpass the destructive power of the bombs dropped on Hiroshima and Nagasaki.

If the North has the capability to build a hydrogen bomb, it could open the way to making warheads that pack much more destructive power in a smaller space. It could also enable North Korea to enhance the threat from its limited stocks of enriched uranium.

What will experts look for?

Analysts who advise governments on nuclear weapons will study the shock waves from the blast measured by monitoring stations. They will also look for clues from traces of nuclear gases that could float into the atmosphere.

Those traces may tell if this test was really a hydrogen bomb, or perhaps something less than a full-scale thermonuclear device. But it can take weeks for the gases to leak out and be detected. – NYTimes

.

You can follow BangkokJack on Facebook & Twitter. Feel free to comment on story below

Asia's Latest and Greatest News Media Group - All the interesting local, national and world events as soon as they happen.
To reach 750,000 world-wide readers a month for as little as $150 please ask for a rate card